The heart and kidneys depend upon each other for support, but they also control each other. The heart descends to the kidneys to provide warmth (kidneys are the fire for all physiological processes) and the kidneys ascend to the heart to prevent it from becoming hyperactive (the heart stores the mind). When kidney yin becomes deficient it fails to nourish heart yin which then also becomes deficient. Hyperactivity in the heart arises, the mind has no foundation causing mental restlessness, insomnia, (waking up several times during the night) and palpitations. Kidney yin can’t nourish the brain causing poor memory, dizziness, tinnitus and deafness. A fast-paced life, longterm overwork, drug and alcohol abuse, longterm poor eating habits and sleep deprivation; combined with anxiety, sadness and depression will cause disharmony between the heart and kidneys. PTSD and emotional shock can also disrupt the interaction between heart and kidneys.
Palpitations, mental restlessness, insomnia, poor memory, tinnitus, deafness, sore lower back, nocturnal emissions, fever in afternoon, night sweating, scanty-dark urine.